The .i files for Python wrapping of ChBody and ChVector had to be updated after Radu's last changes (using ref instead of ptrs).
Note that for most classes, the .i files for SWIG wrapping are not detailed like those two, becuase in most cases one cah use the SWIG feature of auto importing the declarations from the .h files, but for some reasons tfor ChBody and ChVector and few others I had to strip out the .h declarations, so if one moifies the .h , he should also update the .i for SWIG.
Important API change for the uni_FEM!
All FEM elements and nodes now are handled via shared pointers, to make things easier from the user point of view (no need to think about swho is in charge of deleting nodes, etc.)